If you were to increase the stiffness of the tendon relative to the muscle prior to the stretching intervention, a greater stretching stimulus could be provided to the muscle. This would mean that for any given joint stretch the muscle will experience a greater portion of the stretch. It is well established in healthy adults and children that the stiffness of the tendon increases following resistance training. Given that well-designed resistance training is effective and safe for children with CP, the same increased tendon stiffness should follow gains in muscle strength in this group too. It is therefore hypothesise that a combined strengthening-stretching intervention would stiffen the tendon, increase the amount of stretch seen by the muscle, and thereby improve the effectiveness of stretching interventions.